Quilter's Select Rulers are the perfect tool for measuring fabrics for quilting and sewing. This ruler is ideal for creating diamond and 60-degree triangle units up to 8.5", as well as half-triangle 60-degree rectangles and 60-degree equilateral half-rectangle units. These rulers feature a unique non-slip coating that keeps your ruler in place on any material for precision and safety while cutting. Each ruler has clear, easy to read grid lines, with markings at 0.25”, 0.5” and 1” as well as diamond marking lines that make for quick, easy cuts every time.